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对Mimosa矿山所有浮选尾矿流进行的矿物学研究(用QemSCAN扫描仪)表明,其中含有大量的不能回收的各种铂族矿物。在浮选尾矿流中,大部分已解离的铂族金属矿物属于Pt-Pd-Bi-Te类矿物,一般占所研究样品的70%以上。在本工作中,用电化学研究和拉曼光谱分析研究了黄药与Pd-Bi-Te之间的反应。拉曼光谱分析结果证明了黄药和双黄药的共同存在。在黄药吸附在Pd-Bi-Te矿物表面上时,仍保留其分子的整体性。研究结果还表明,当矿物表面发生阳极极化时,表面有双黄药出现。由此认为,浮选给矿中矿物表面发生阳极极化时,表面有双黄药出现。由此认为,浮选给矿中Pd-Bi-Te矿物的可浮性较低不能归因于捕收剂与矿物表面反应活性低。
Mineralogy studies (using a QemSCAN scanner) of all flotation tailings flows at the Mimosa mine have shown that they contain large amounts of various platinum group minerals that can not be recovered. In the flotation tailings stream, most of the dissociated PGMs belong to the Pt-Pd-Bi-Te group and typically account for more than 70% of the studied samples. In this work, the reaction between xanthate and Pd-Bi-Te was studied by electrochemical and Raman spectroscopy. The results of Raman spectroscopy proved the coexistence of xanthate and xanthophylls. The xanthate retains its molecular integrity when adsorbed on the surface of Pd-Bi-Te minerals. The results also show that when anodic polarization occurs on the surface of the mineral, the presence of a double yellow drug appears on the surface. Therefore, flotation to mineral surface anodic polarization, the surface of the double xanthate appear. Therefore, it is considered that the low floatability of Pd-Bi-Te minerals from flotation can not be attributed to the low reactivity of collectors with mineral surfaces.